This is brownie-style Agfa camera (B2-Cadet).
I found exposed roll of Kodak Verichrome Pan film inside and developed it.
There were 4 frames on the film:
The girl's hair-dress à la Jacqueline Kennedy is pointing to mid-60s.
Click, click, click: girl in the garden, the girl with hat, the dog, the girl with the dog and boy and it all goes into darkness which, if properly developed and fixed, will turn into light again:)